Wall-packer for oil-wells.



PATENTED JUL? 7, 1908.

E. E. TIRK. WALL PACKBR FOR OIL WELLS.

APPLICATION FILED DEC-18. 1906.

r n n $5 r itat..:JifF/r 4.5 fiar/f f5 n 5 HGB In en or BY. Attorney 'm @www Witnesses l ELMEIR "E, TIRK, OF FRANKLIN, PENNSYLVANIA.

WALL-Pacman Fon oIIi'wELLs.

Neseavvc.

Specication of Letters Patent.

Patented July'Y, 1908.

Application filed December 18, 190. Serial lio. 348,449.

Tov allwliom it may concern:

-Be it. known that I, ELMER ETIRK, a. taizen of the United States, residing at Franklin,.in the county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in WallPackers for Gil-Wells,"- of which' the following is-a e specification, reference being had therein to readinessfto be placed in the well.

accompanying drawing. v

My invention relates to improvements in wall-packers for o il wells, the object, con struction and o eration of which are fully set lforth in the ollowing specification, refer# ence `being had.' to the accompanymg drawin s, 'which forni-a part hereof, and in which,

gure 1;; ral vertical section. -,Fig. 2 is an elevation oiflmy improved packer in l Fig. 3 is an elevation showingthe position which the rubber assumes whel he packer is Withdrawnfrom the well ig. 4 is a section on line 4-4 of Fig. 2.'.` 5 is a side elevationI of one of my improved slips.

. .The object of my invention is'to rovide a wallacker for `oil and Artesian we ls which will e easier to remove from .the Well than the form now commonly used, and to accomplish thls object, I employ certain novel feaf tures of construction which are herein set forth `with sulicient clearness to enable those familiar with the art to which it apper-i4 l.,g-itains to make and use the same.

The construction of my improved packer is substantially as follows:- y

I employ anelon ated section of pipe or tubing 1, which is o .a larger outside dlamelter at the top than itis at the bottom, which enlargement terminates at the square shoulder 2.; vupon the upper end of sald tubing is secured a collar 3; beneath .said collar is .placed a flexible rubber sleeveser packing section 4, which fits closely over the enlarged portion of the tube 1 and extends 4attached a thinner sleeve 5, which is merely.

1an extension of sleeve 5. Upon lthe lower end of sleeve/5 -is secured acollar 6. Sleeve 5 is tapered from `the point of its junction with sleeve 5 for a considerable distance upward, and at the lower end of said taper are located several slips 7 (see Fig. 5), each with its outward face serrated. At'the lower end,

the back of each slip is tapered `to conform tothe ta er of sleeve 2.. Each slip, at its lower en is provided -with an outwardly opening gap 8, for the reception of a retainingring 9, which holds the slips in position. elow the slips 7 is placed a spiral spring 10, the lower end of which bea-rs u on the collar 6. S ring 10 is considerab y compressed, as s own in Figs. 2 and 3. For the purpose ofholding said spring in such compressed position, I provide a lock 11, the ends of which pass through the holes 12 provided therefor through the walls of the sleeve 5 and releases it from engagement with ring 9 and permits spring 10 to raise the slips 7. The upward movement of said slips also carries them.out ward so as to bring their serrated out'er faces into contact with the wall of the well. The tubing or casing to which the packer is attached is then lowered slightly, which causes the Weight of said tubing or casing to rest in the slips and then cause them to press outward against the wall of the well 'with sulicient force to sustain the entire weight of the casing, and this causes tile packing sleeve 4 to bulge outward and e tirely fill the bore of the well, and effectually pack it against the downward flow ofl pull through the sleeve until the smaller giorgtion of said tube 1 isl within.'` sl'gZfN or lowering the tubing to the extent of said' plary, a series of shocks may be imparted to 'seid packer, to loosen it from its set position. Having' thus described my invention', what l claim as new end desire to secure by Letters etent, is-

In e Wall-packer, the combination of a ilexi--A ble end a rigid sleeve, en elongated pipe upon Which saidsleeves are mounted, the length ,of seid pipe being greater than the combined length of said sleeves, the upper portion of seid pipe being of larger diameter 'then the lower portion, seid flexible sleeve 2() occupying th'e'enlerged portion of seid nim said rigid sleeye l,oeing positioned below said sleeve end pos1tione'd normally at the lower,

smaller' portion of seid taper and adapted to be broughtinto engagement With the Wall of the Well,'mea.ns for Causing such engegen'lent I of seid slips end'meens for holding the seme normally out of such engagement, seid pipe orV tube being adapted to have e longitudine" movement through seid sleeve when y th peokeris removed from `the Well.

ln testimony whereof l ailix my signature in presence oftwo Witnesses.

ELMER E. TERK.

' Witnessesz 1 G. M. SIEFER,

P. C. l/VHITMAN. 

